CN107413361A - The method that base metal tungsten carbide photochemical catalyst is prepared using hydro-thermal method - Google Patents
The method that base metal tungsten carbide photochemical catalyst is prepared using hydro-thermal method Download PDFInfo
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- CN107413361A CN107413361A CN201710429094.8A CN201710429094A CN107413361A CN 107413361 A CN107413361 A CN 107413361A CN 201710429094 A CN201710429094 A CN 201710429094A CN 107413361 A CN107413361 A CN 107413361A
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- hydro
- tungsten carbide
- photochemical catalyst
- base metal
- tungstic acid
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- 239000003054 catalyst Substances 0.000 title claims abstract description 37
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000010953 base metal Substances 0.000 title claims abstract description 21
- 238000001027 hydrothermal synthesis Methods 0.000 title claims abstract description 20
- CMPGARWFYBADJI-UHFFFAOYSA-L tungstic acid Chemical compound O[W](O)(=O)=O CMPGARWFYBADJI-UHFFFAOYSA-L 0.000 claims abstract description 18
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 10
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract description 8
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract description 8
- 239000008103 glucose Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 238000003763 carbonization Methods 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 17
- 229910000510 noble metal Inorganic materials 0.000 abstract description 9
- 239000011941 photocatalyst Substances 0.000 abstract description 7
- 238000007146 photocatalysis Methods 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000001354 calcination Methods 0.000 abstract description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 description 18
- 229910052739 hydrogen Inorganic materials 0.000 description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 16
- 230000003197 catalytic effect Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000010970 precious metal Substances 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 241000219095 Vitis Species 0.000 description 3
- 235000009754 Vitis X bourquina Nutrition 0.000 description 3
- 235000012333 Vitis X labruscana Nutrition 0.000 description 3
- 235000014787 Vitis vinifera Nutrition 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- AAQNGTNRWPXMPB-UHFFFAOYSA-N dipotassium;dioxido(dioxo)tungsten Chemical compound [K+].[K+].[O-][W]([O-])(=O)=O AAQNGTNRWPXMPB-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
Abstract
The invention discloses the method that base metal tungsten carbide photochemical catalyst is prepared using hydro-thermal method, and it is using tungstates and ammonium sulfate as raw material, and linear tungstic acid predecessor is made through hydro-thermal reaction;It is again that raw material carries out hydro-thermal reaction with tungstic acid and glucose, products therefrom carries out calcination process under protection compression ring border, that is, base metal tungsten carbide catalyst is made.The preparation method of the present invention has the characteristics that simple technique, safety, environmental pollution are small, efficient, the tungsten carbide photochemical catalyst size prepared is nanoscale, have the characteristics that cost is low, stability is good, utilization rate is high, service life is long, photocatalysis performance is higher than noble metal based photocatalyst, it is easy to accomplish commercialization.
Description
Technical field
The invention belongs to photochemical catalyst preparing technical field, more particularly to one kind prepares base metal tungsten carbide photochemical catalyst
Method.
Background technology
As global energy problem and environmental problem are more and more prominent, find it is a kind of it is clean, conveniently, recyclable effective use
The method of the energy become more and more urgent, for example use solar energy.The noble metal photocatalysis such as golden (Au), platinum (Pt) and palladium (Pd)
Agent is widely used in photocatalysis field, such as photocatalytic water splitting production hydrogen, photocatalysis CO2Reduction, photocatalytic degradation, photochemical catalytic oxidation
Deng.These noble metal photochemical catalysts show higher photocatalytic activity, but expensive, are not suitable for large-scale industrial application.
In recent years, base metal tungsten carbide (WC) photochemical catalyst produces hydrogen, photocatalysis CO in photocatalytic water splitting2Reduction, photocatalytic degradation,
Good application prospect has been shown during photochemical catalytic oxidation etc..It has the activity and stability to be compared favourably with noble metal,
And its cheap, abundance, it is more suitable for heavy industrialization application.
But traditional tungsten carbide preparation technology need to be improved, product pattern is disorderly and unsystematic, and particle size is irregular, point
It is scattered uneven, easily occur to reunite and react incomplete phenomenon, strong influence is produced to the performance of product.Therefore, one is developed
Plant simple, safety, controllable appearance, green tungsten carbide preparation technology highly significant.
The content of the invention
The present invention is to avoid the weak point present in above-mentioned prior art, there is provided one kind is prepared using green hydro-thermal method
The method of efficient tungsten carbide photochemical catalyst.
The present invention adopts the following technical scheme that to realize goal of the invention:
The method that the present invention prepares base metal tungsten carbide photochemical catalyst using hydro-thermal method, is that tungstates and ammonium sulfate exist
After being well mixed and fully dissolve in water, carry out hydro-thermal reaction and obtain tungstic acid predecessor;By tungstic acid predecessor and Portugal
After grape sugar is well mixed in water, then hydro-thermal reaction is carried out, after products therefrom roasting, produce target product base metal tungsten carbide
Photochemical catalyst.Specifically comprise the following steps:
(1) tungstates and ammonium sulfate are well mixed in water and fully dissolved, then adjusted pH to 1~3, must mix
Liquid;
(2) mixed liquor is poured into reactor, 160~200 DEG C of hydro-thermal reaction 8h, products therefrom is centrifuged,
Washing, dry, obtain tungstic acid predecessor;
(3) the tungstic acid predecessor is well mixed in water with glucose, be subsequently poured into reactor, 160~
200 DEG C of hydro-thermal reaction 8h, products therefrom is centrifuged, washed, is dried, obtains carbon coating tungstic acid predecessor;
(4) by the carbon coating tungstic acid predecessor under the conditions of argon gas, 850~1000 DEG C be calcined 1 hour, that is, be made
Target product base metal tungsten carbide photochemical catalyst.
The tungstates is sodium tungstate, ammonium tungstate or potassium tungstate, preferably sodium tungstate.
The mass ratio of the tungstates and ammonium sulfate is 1.3:0.5~2.
The mass ratio of the predecessor and glucose is 1.5:1~9.
Beneficial effects of the present invention are embodied in:
1st, the method that the present invention prepares base metal tungsten carbide photochemical catalyst using hydro-thermal method, tungsten carbide side is prepared with tradition
For method compared to the obvious advantage, the tungstic acid of linear pattern be used as tungsten source to the present invention and material morphology is basic by preparing, and utilizes Portugal
Grape sugar provides carbon source and reducing agent, pyroreaction prepare tungsten carbide, compared with conventional method, morphology controllable, avoids biography
It is the reunion that easily occurs in system method, the problems such as collapsing, safe operation process, simple;
2nd, hydro-thermal method of the present invention is prepared during base metal tungsten carbide photochemical catalyst without using any toxic reagent, danger
Dangerous gas, cheap free of contamination argon gas is simply used as protective gas, therefore preparation process is green;
3rd, base metal tungsten carbide photochemical catalyst uniform particle sizes produced by the present invention, good dispersion, crystal perfection, catalysis are lived
Property it is high, catalytic stability is good, be adapted to batch production.
4th, the raw materials used sodium tungstate aboundresources of the present invention, it is cheap, be widely used, be it is the most commonly used prepare it is non-expensive
The raw material of metallic carbide tungsten photochemical catalyst.
Brief description of the drawings
Fig. 1 is the electron scanning micrograph of the gained tungsten carbide photochemical catalyst of embodiment 2;
Fig. 2 is the X-ray diffraction spectrogram (XRD) of the gained tungsten carbide photochemical catalyst of embodiment 2;
Fig. 3 is gained tungsten carbide photochemical catalyst under different glucose dosages in embodiment 1,2,3,4 in photocatalytic water splitting
Activity in reaction;
Fig. 4 is tungsten carbide photochemical catalysts obtained by different sintering temperatures in embodiment 2,5,6 in photocatalytic water splitting reaction
Activity.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
Agents useful for same is purchased from Chemical Reagent Co., Ltd., Sinopharm Group in the following embodiments of the present invention.
Embodiment 1
Weighing 1.3g sodium tungstates, 1.0g ammonium sulfate, which are placed in, successively is well mixed in 30mL deionized waters and fully dissolves, and makes
PH=2 is adjusted with 3M HCl solutions, the clarification mixed liquor liquid of gained is added in 50mL ptfe autoclave, will be anti-
Answer kettle to be placed in hydro-thermal reaction 8 hours in 180 DEG C of baking ovens, then naturally cool to room temperature, and product is centrifuged, wash, done
It is dry, obtain tungstic acid predecessor;
0.15g tungstic acids predecessor is placed in 30mL deionized waters with 0.9g glucose and is well mixed, is then added
Into 50mL ptfe autoclave, reactor is placed in hydro-thermal reaction 8 hours, subsequent natural cooling in 180 DEG C of baking ovens
To room temperature, and product is centrifuged, washed, is dried, obtaining carbon coating tungstic acid predecessor;
Carbon coating tungstic acid predecessor is put into heat treatment apparatus, and is filled with argon gas, temperature programming to 900 DEG C,
Constant temperature calcining 1 hour, that is, target product base metal tungsten carbide photochemical catalyst is made, labeled as T1.
Through characterizing, the pattern particle diameter of sample obtained by the present embodiment is uneven, pattern is reunited, poor-performing.
T1 samples are used in photocatalytic water splitting production hydrogen reaction, while carried out using precious metals pt as photochemical catalyst pair
Than to test its catalytic performance, specific method is:20mg T1 samples are combined with 30mg CdS quantum dots, and add 10mL breasts
Acid is as sacrifice agent, 90mL deionized waters as solvent and catalysis substrate.After tested, the hydrogen output of T1 samples is as shown in figure 3, originally
The hydrogen-producing speed of T1 samples is 962 μm of ol/h obtained by embodiment, (is about 323 μm of ol/ higher than noble metal based photocatalyst is used
h)。
Embodiment 2
The present embodiment prepares base metal tungsten carbide photochemical catalyst by the identical method of embodiment 1, differs only in grape
Sugared dosage is changed to 0.45g.Gained target product is labeled as T2.
Fig. 1 is the electron scanning micrograph of target product tungsten carbide, and Fig. 2 is the x-ray diffraction pattern of target product
Figure.The tungsten carbide catalyst prepared as can be seen from Figure 1 is long rod-like structure, has preferably dispersiveness, and it is average long
Degree is about in 600nm or so.It can be clearly seen that have at 2 θ is 31.480,35.760 and 48.400 3 most strong from Fig. 2
Diffraction maximum, correspond to WC (001), (100) and (101) 3 crystal face (JCPDS respectively:51-0939);In addition, there are several places relative
Weaker diffraction maximum, its 2 θ value are followed successively by 64.040,65.320,73.200,75.600 and 76.920, respectively WC crystal faces
(110), (002), (111), (200) and (102) (JCPDS:51-0939).
T2 samples are used in photocatalytic water splitting production hydrogen reaction by the identical method of embodiment 1, while with precious metals pt
Contrasted as photochemical catalyst, to test its catalytic performance.After tested, the hydrogen output of T2 samples is as shown in figure 3, can from figure
To find out that T2 samples have preferable photocatalytic activity, it is computed, the hydrogen-producing speed of T2 samples is 1440 μm of ol/h, higher than using expensive
Metal based photocatalyst (about 323 μm of ol/h).
Embodiment 3
The present embodiment prepares base metal tungsten carbide photochemical catalyst by the identical method of embodiment 1, differs only in grape
Sugared dosage is changed to 0.225g.Gained target product is labeled as T3.
The pattern of sample obtained by the present embodiment is similar to Example 2, and uniform particle sizes, pattern are excellent, better performances.
T3 samples are used in photocatalytic water splitting production hydrogen reaction by the identical method of embodiment 1, while with precious metals pt
Contrasted as photochemical catalyst, to test its catalytic performance.After tested, the hydrogen output of T3 samples is as shown in figure 3, be computed,
The hydrogen-producing speed of T3 samples is 1299 μm of ol/h, higher than use noble metal based photocatalyst (about 323 μm of ol/h).
Embodiment 4
The present embodiment prepares base metal tungsten carbide photochemical catalyst by the identical method of embodiment 1, differs only in grape
Sugared dosage is changed to 0.1125g.Gained target product is labeled as T4.
The pattern of sample is similar to Example 1 obtained by the present embodiment, and particle diameter is uneven, pattern is reunited disperses, poor-performing.
T4 samples are used in photocatalytic water splitting production hydrogen reaction by the identical method of embodiment 1, while with precious metals pt
Contrasted as photochemical catalyst, to test its catalytic performance.After tested, the hydrogen output of T4 samples is as shown in figure 3, be computed,
The hydrogen-producing speed of T4 samples is 633 μm of ol/h, higher than use noble metal based photocatalyst (about 323 μm of ol/h).
Embodiment 5
The present embodiment prepares base metal tungsten carbide photochemical catalyst by the identical method of embodiment 2, differs only in roasting
Temperature is 800 DEG C.Gained target product is labeled as T5.
The pattern of sample is similar to Example 1 obtained by the present embodiment, scattered, poor performance that particle diameter is uneven, pattern is reunited.
T5 samples are used in photocatalytic water splitting production hydrogen reaction by the identical method of embodiment 1, while with precious metals pt
Contrasted as photochemical catalyst, to test its catalytic performance.After tested, as shown in figure 4, the hydrogen-producing speed of T5 samples is 786 μ
Mol/h, higher than use noble metal based photocatalyst (about 323 μm of ol/h).
Embodiment 6
The present embodiment prepares base metal tungsten carbide photochemical catalyst by the identical method of embodiment 2, differs only in roasting
Temperature is 1000 DEG C.Gained target product is labeled as T6.
The pattern of sample is similar to Example 1 obtained by the present embodiment, scattered, poor performance that particle diameter is uneven, pattern is reunited.
T6 samples are used in photocatalytic water splitting production hydrogen reaction by the identical method of embodiment 1, while with precious metals pt
Contrasted as photochemical catalyst, to test its catalytic performance.After tested as shown in figure 4, the hydrogen-producing speed of T6 samples is 967 μ
Mol/h, higher than use noble metal based photocatalyst (about 323 μm of ol/h).
Claims (5)
1. the method for base metal tungsten carbide photochemical catalyst is prepared using hydro-thermal method, it is characterised in that:By tungstates and ammonium sulfate
After being well mixed in water and fully dissolving, carry out hydro-thermal reaction and obtain tungstic acid predecessor;By tungstic acid predecessor with
After glucose is well mixed in water, then hydro-thermal reaction is carried out, after products therefrom roasting, produce the carbonization of target product base metal
Tungsten photochemical catalyst.
2. according to the method for claim 1, it is characterised in that comprise the following steps:
(1) tungstates and ammonium sulfate are well mixed in water and fully dissolved, then adjusted pH to 1~3, obtain mixed liquor;
(2) mixed liquor is poured into reactor, 160~200 DEG C of hydro-thermal reaction 8h, products therefrom is centrifuged, washed,
Dry, obtain tungstic acid predecessor;
(3) the tungstic acid predecessor is well mixed in water with glucose, be subsequently poured into reactor, 160~200 DEG C
Hydro-thermal reaction 8h, products therefrom is centrifuged, washed, is dried, obtains carbon coating tungstic acid predecessor;
(4) by the carbon coating tungstic acid predecessor under the conditions of argon gas, 800~1000 DEG C be calcined 1 hour, that is, be made target
Product base metal tungsten carbide photochemical catalyst.
3. method according to claim 1 or 2, it is characterised in that:The tungstates is sodium tungstate, ammonium tungstate or wolframic acid
Potassium.
4. method according to claim 1 or 2, it is characterised in that:The mass ratio of the tungstates and ammonium sulfate is 1.3:
0.5~2.
5. method according to claim 1 or 2, it is characterised in that:The mass ratio of the predecessor and glucose is 1.5:1
~9.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111468152A (en) * | 2020-04-27 | 2020-07-31 | 宁夏大学 | Preparation and application of flower-shaped WC cocatalyst |
WO2021008563A1 (en) * | 2019-07-17 | 2021-01-21 | 中国科学院上海硅酸盐研究所 | Transparent heat-shielding particulate, particulate dispersoid, and preparation method and use thereof |
CN115845885A (en) * | 2022-10-20 | 2023-03-28 | 江苏大学 | CdS/WC 1-x @ C composite photocatalyst and preparation method and application thereof |
CN115845885B (en) * | 2022-10-20 | 2024-05-10 | 江苏大学 | CdS/WC1-xComposite photocatalyst @ C and preparation method and application thereof |
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CN101891192A (en) * | 2010-07-02 | 2010-11-24 | 山东大学 | Method for synthesizing carbide nano powder by solid-phase reaction |
CN104843708A (en) * | 2015-04-20 | 2015-08-19 | 江苏大学 | Preparation method of tungsten carbide hollow hemispheres |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021008563A1 (en) * | 2019-07-17 | 2021-01-21 | 中国科学院上海硅酸盐研究所 | Transparent heat-shielding particulate, particulate dispersoid, and preparation method and use thereof |
CN111468152A (en) * | 2020-04-27 | 2020-07-31 | 宁夏大学 | Preparation and application of flower-shaped WC cocatalyst |
CN115845885A (en) * | 2022-10-20 | 2023-03-28 | 江苏大学 | CdS/WC 1-x @ C composite photocatalyst and preparation method and application thereof |
CN115845885B (en) * | 2022-10-20 | 2024-05-10 | 江苏大学 | CdS/WC1-xComposite photocatalyst @ C and preparation method and application thereof |
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